 Gram

The gram is the unit of mass equal to $10^{-3}$ kilogram. Its symbol is $\mathrm{g}$. Thus $250\mathrm{g}=0.250\mathrm{kg}$.

The kilogram is the SI base unit; prefixes for decimal multiples and submultiples of mass are attached to gram. This special convention gives milligram and microgram, rather than stacked prefixes on kilogram. Mass remains distinct from weight, a force.^[ref]

"Gram" can refer to several things, depending on the context. Here are a few of the most common meanings: 1. **Unit of Mass**: A gram is a metric unit of mass equal to one thousandth of a kilogram (0.001 kg). It is commonly used to measure small weights in fields such as cooking, nutrition, and science.